lit by a spark from the power distribution cabinet in the cleaning closet. There were two possible sources for the methane; a leak from a gas pipe under the nearby Museokatu street, or gas that developed on its own in the sewer. Later, police investigations found the cause to be a gas pipe leak. Most display cases and 49 pieces out of more than 200 silver objects in the museum's Silver Room were damaged in the explosion, although most of them only mildly. Nobody was hurt. All objects were successfully repaired the same year. The Silver Room was re-opened to the public in early 2007. Gallery See also Elk's Head of Huittinen, an eight to nine thousand year old sculpture exhibited at the museum. Notes External links The National Museum of Finland Homepage Emporis – The National Museum of Finland Panoramic virtual tour inside the museum Museum of Cultures Helsinki Museums established in 1910 Archaeological museums Military and war museums in Finland Museums established in 1916 Museums in Helsinki Finland Buildings designed by Eliel Saarinen National Romantic architecture in Finland 1916 establishments in Finland History museums in Finland Art Nouveau architecture in Helsinki Art Nouveau museum buildings Töölö